#2338: auth information unavailable in the error template
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Reporter: pitrou | Owner:
Type: defect | Status: new
Priority: normal | Milestone:
Component: TurboGears | Version: 2.0b7
Severity: normal | Keywords:
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It seems that, when generating a 404 page (or, I assume, any other error
page), the ORM session has been invalidated and therefore any attempt by
the basic layout template (which is inherited by the error template) to
access attributes of the current user (e.g. tg.identity ['user'].foobar)
produce the following traceback.
Reading http://turbogears.org/2.0/docs/main/RequestFlow.html, it may be
due to the Database Session Manager cleaning up the session before the
Error Middleware builds the error page.
For reference, this is the exception I got:
{{{
Exception happened during processing of request from ('127.0.0.1',
39054)
Traceback (most recent call last):
File "/usr/lib/python2.6/site-packages/Paste-1.7.2-py2.6.egg/paste/
httpserver.py", line 1062, in process_request_in_thread
self.finish_request(request, client_address)
File "/usr/lib64/python2.6/SocketServer.py", line 320, in
finish_request
self.RequestHandlerClass(request, client_address, self)
File "/usr/lib64/python2.6/SocketServer.py", line 615, in __init__
self.handle()
File "/usr/lib/python2.6/site-packages/Paste-1.7.2-py2.6.egg/paste/
httpserver.py", line 436, in handle
BaseHTTPRequestHandler.handle(self)
File "/usr/lib64/python2.6/BaseHTTPServer.py", line 329, in handle
self.handle_one_request()
File "/usr/lib/python2.6/site-packages/Paste-1.7.2-py2.6.egg/paste/
httpserver.py", line 431, in handle_one_request
self.wsgi_execute()
File "/usr/lib/python2.6/site-packages/Paste-1.7.2-py2.6.egg/paste/
httpserver.py", line 287, in wsgi_execute
self.wsgi_start_response)
File "/usr/lib/python2.6/site-packages/Paste-1.7.2-py2.6.egg/paste/
cascade.py", line 130, in __call__
return self.apps[-1](environ, start_response)
File "/usr/lib/python2.6/site-packages/Paste-1.7.2-py2.6.egg/paste/
registry.py", line 350, in __call__
app_iter = self.application(environ, start_response)
File "/usr/lib/python2.6/site-packages/Pylons-0.9.7-py2.6.egg/pylons/
middleware.py", line 214, in __call__
self.app, new_environ, catch_exc_info=True)
File "/usr/lib/python2.6/site-packages/Pylons-0.9.7-py2.6.egg/pylons/
util.py", line 94, in call_wsgi_application
app_iter = application(environ, start_response)
File "/usr/lib/python2.6/site-packages/WebError-0.10.1-py2.6.egg/
weberror/evalexception.py", line 235, in __call__
return self.respond(environ, start_response)
File "/usr/lib/python2.6/site-packages/WebError-0.10.1-py2.6.egg/
weberror/evalexception.py", line 418, in respond
return self.application(environ, start_response)
File "/usr/lib/python2.6/site-packages/TurboGears2-2.0-py2.6.egg/tg/
configuration.py", line 643, in wrapper
return app(environ, start_response)
File "/usr/lib/python2.6/site-packages/TurboGears2-2.0-py2.6.egg/tg/
configuration.py", line 543, in remover
return app(environ, start_response)
File "/usr/lib/python2.6/site-packages/repoze.tm2-1.0a4-py2.6.egg/
repoze/tm/__init__.py", line 19, in __call__
result = self.application(environ, save_status_and_headers)
File "/usr/lib/python2.6/site-packages/repoze.who-1.0.10-py2.6.egg/
repoze/who/middleware.py", line 49, in __call__
return self.app(environ, start_response)
File "/usr/lib/python2.6/site-packages/ToscaWidgets-0.9.4-py2.6.egg/
tw/core/middleware.py", line 36, in __call__
return self.wsgi_app(environ, start_response)
File "/usr/lib/python2.6/site-packages/ToscaWidgets-0.9.4-py2.6.egg/
tw/core/middleware.py", line 59, in wsgi_app
resp = req.get_response(self.application)
File "/usr/lib/python2.6/site-packages/WebOb-0.9.6.1-py2.6.egg/webob/
__init__.py", line 1325, in get_response
application, catch_exc_info=False)
File "/usr/lib/python2.6/site-packages/WebOb-0.9.6.1-py2.6.egg/webob/
__init__.py", line 1293, in call_application
app_iter = application(self.environ, start_response)
File "/usr/lib/python2.6/site-packages/ToscaWidgets-0.9.4-py2.6.egg/
tw/core/resource_injector.py", line 67, in _injector
resp = req.get_response(app)
File "/usr/lib/python2.6/site-packages/WebOb-0.9.6.1-py2.6.egg/webob/
__init__.py", line 1325, in get_response
application, catch_exc_info=False)
File "/usr/lib/python2.6/site-packages/WebOb-0.9.6.1-py2.6.egg/webob/
__init__.py", line 1293, in call_application
app_iter = application(self.environ, start_response)
File "/usr/lib/python2.6/site-packages/Beaker-1.3-py2.6.egg/beaker/
middleware.py", line 81, in __call__
return self.app(environ, start_response)
File "/usr/lib/python2.6/site-packages/Beaker-1.3-py2.6.egg/beaker/
middleware.py", line 160, in __call__
return self.wrap_app(environ, session_start_response)
File "/usr/lib/python2.6/site-packages/Routes-1.10.3-py2.6.egg/
routes/middleware.py", line 130, in __call__
response = self.app(environ, start_response)
File "/usr/lib/python2.6/site-packages/Pylons-0.9.7-py2.6.egg/pylons/
wsgiapp.py", line 125, in __call__
response = self.dispatch(controller, environ, start_response)
File "/usr/lib/python2.6/site-packages/Pylons-0.9.7-py2.6.egg/pylons/
wsgiapp.py", line 324, in dispatch
return controller(environ, start_response)
File "/home/antoine/ftth/XXX/XXX/lib/base.py", line 36, in __call__
return TGController.__call__(self, environ, start_response)
File "/usr/lib/python2.6/site-packages/Pylons-0.9.7-py2.6.egg/pylons/
controllers/core.py", line 221, in __call__
response = self._dispatch_call()
File "/usr/lib/python2.6/site-packages/Pylons-0.9.7-py2.6.egg/pylons/
controllers/core.py", line 172, in _dispatch_call
response = self._inspect_call(func)
File "/usr/lib/python2.6/site-packages/Pylons-0.9.7-py2.6.egg/pylons/
controllers/core.py", line 107, in _inspect_call
result = self._perform_call(func, args)
File "/usr/lib/python2.6/site-packages/TurboGears2-2.0-py2.6.egg/tg/
controllers.py", line 798, in _perform_call
self, controller, params, remainder=remainder)
File "/usr/lib/python2.6/site-packages/TurboGears2-2.0-py2.6.egg/tg/
controllers.py", line 172, in _perform_call
response = self._render_response(controller, output)
File "/usr/lib/python2.6/site-packages/TurboGears2-2.0-py2.6.egg/tg/
controllers.py", line 350, in _render_response
template_name=template_name)
File "/usr/lib/python2.6/site-packages/TurboGears2-2.0-py2.6.egg/tg/
render.py", line 141, in render
return render_function(template_name, template_vars, **kwargs)
File "/usr/lib/python2.6/site-packages/TurboGears2-2.0-py2.6.egg/tg/
render.py", line 179, in render_mako
**kwargs)
File "/usr/lib/python2.6/site-packages/Pylons-0.9.7-py2.6.egg/pylons/
templating.py", line 274, in render_mako
cache_type=cache_type, cache_expire=cache_expire)
File "/usr/lib/python2.6/site-packages/Pylons-0.9.7-py2.6.egg/pylons/
templating.py", line 249, in cached_template
return render_func()
File "/usr/lib/python2.6/site-packages/Pylons-0.9.7-py2.6.egg/pylons/
templating.py", line 271, in render_template
return literal(template.render_unicode(**globs))
File "/usr/lib/python2.6/site-packages/Mako-0.2.4-py2.6.egg/mako/
template.py", line 138, in render_unicode
return runtime._render(self, self.callable_, args, data,
as_unicode=True)
File "/usr/lib/python2.6/site-packages/Mako-0.2.4-py2.6.egg/mako/
runtime.py", line 347, in _render
_render_context(template, callable_, context, *args,
**_kwargs_for_callable(callable_, data))
File "/usr/lib/python2.6/site-packages/Mako-0.2.4-py2.6.egg/mako/
runtime.py", line 364, in _render_context
_exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
File "/usr/lib/python2.6/site-packages/Mako-0.2.4-py2.6.egg/mako/
runtime.py", line 397, in _exec_template
callable_(context, *args, **kwargs)
File "_home_antoine_ftth_XXX_XXX_templates_layout_mak", line 77, in
render_body
File "/home/antoine/ftth/XXX/XXX/model/auth.py", line 157, in cps
return set(z.cp for g in self.groups for z in g.zones)
File "/home/antoine/ftth/XXX/XXX/model/auth.py", line 157, in
<genexpr>
return set(z.cp for g in self.groups for z in g.zones)
File "/usr/lib/python2.6/site-packages/SQLAlchemy-0.5.4p2-py2.6.egg/
sqlalchemy/orm/attributes.py", line 158, in __get__
return self.impl.get(instance_state(instance), instance_dict
(instance))
File "/usr/lib/python2.6/site-packages/SQLAlchemy-0.5.4p2-py2.6.egg/
sqlalchemy/orm/attributes.py", line 374, in get
value = callable_()
File "/usr/lib/python2.6/site-packages/SQLAlchemy-0.5.4p2-py2.6.egg/
sqlalchemy/orm/strategies.py", line 538, in __call__
(mapperutil.state_str(state), self.key)
UnboundExecutionError: Parent instance <Group at 0x3ec76d0> is not
bound to a Session; lazy load operation of attribute 'zones' cannot
proceed
}}}
--
Ticket URL: <http://trac.turbogears.org/ticket/2338>
TurboGears <http://www.turbogears.org/>
TurboGears front-to-back web development
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